
Philips Semiconductors
PNX15xx Series
Volume 1 of 1
Chapter 11: QVCP
PNX15XX_SER_3
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 3 — 17 March 2006
11-61
15:8
Unused
-
7:6
PassColorKey3
R/W
0
This register determines how to handle color key forwarding
00 pass zeros to the next mixer
01 pass current color key 3 to next mixer
10 pass previous color key 3 to next mixer
11 reserved
5:4
PassColorKey2
R/W
0
This register determines how to handle color key forwarding
00 pass zeros to the next mixer
01 pass current color key 2 to next mixer
10 pass previous color key 2 to next mixer
11 reserved
3:2
PassColorKey1
R/W
0
This register determines how to handle color key forwarding
00 pass zeros to the next mixer
01 pass current color key1 to next mixer
10 pass previous color key1 to next mixer
11 reserved
1:0
PassColorKey0
R/W
0
This register determines how to handle color key forwarding
00 pass zeros to the next mixer
01 pass current color key 0 to next mixer
10 pass previous color key 0 to next mixer
11 reserved
Offset 0x10 E294
Pixel Invert/Select ROP
31:16
InvertROP
R/W
0
This ROP decides if the previous pixel is inverted or not.
ROP output:
1 = Invert previous pixel.
0 = Do not invert previous pixel.
15:0
SelectROP
R/W
0
This ROP determines which pixel to select for the current mixer
output. ROP output:
1 = Select previous pixel.
0 = Select new pixel.
Offset 0x10 E298
Alpha Blend/Key Pass
31:16
AlphaBlend
R/W
0
This ROP value determines whether or not to do an alpha blend.
ROP output:
1 = Do alpha blending.
0 = No alpha blending
15:0
KeyPass
R/W
0
This ROP generates the key which is passed to the next layer mixer
and is used as KEY0 in those ROPs.
Offset 0x10 E29C
Alpha Pass
31:16
AlphaPass
R/W
0
This ROP value determines which alpha is passed to the next mixer
stage. ROP output:
1 = Alpha of previous pixel
0 = Alpha of current pixel
15:0
Unused
-
Offset 0x10 E2A0
Color Key ROPs 1/2
31:16
Unused
-
Table 20: QVCP 1 Registers …Continued
Bit
Symbol
Acces
s
Value
Description